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  {
   "cell_type": "code",
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   "metadata": {},
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   "source": [
    "# 导入包\n",
    "import pandas as pd\n",
    "import numpy as np\n",
    "pd.set_option('display.max_columns',None) # 设置DataFrame最大展示列数P\n",
    "pd.set_option('display.max_rows',10) # 设置DataFrame最大展示行数"
   ]
  }
 ],
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